Annealing effects on nitrogen site ordering and anisotropic magnetoresistance in pseudo-single-crystal γ′-Fe4N films

Kazuki Kabara, Masakiyo Tsunoda, Satoshi Kokado

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Pseudo-single-crystal γ ′-Fe4N films were fabricated by changing the degree of order (S) of N sites, and their anisotropic magnetoresistance (AMR) effects along the Fe4N[100] direction were investigated. Negative AMR ratios were observed in all the specimens in the temperature range of 5-300 K. Specific features-a marked increase in the AMR magnitude below 50K and the appearance of the cos 4θ term in the AMR curve below 30K-were clearly observed in the case of high S, and these features decreased with decreasing S. The physical origin of these features is proposed to be a crystal field effect on the AMR.

Original languageEnglish
Article number063003
JournalApplied Physics Express
Volume7
Issue number6
DOIs
Publication statusPublished - 2014 Jun

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Annealing effects on nitrogen site ordering and anisotropic magnetoresistance in pseudo-single-crystal γ′-Fe<sub>4</sub>N films'. Together they form a unique fingerprint.

Cite this